the nasa chief told lawmakers a meteor may have been deflected. infrared technology could have detected the meteor. currently there is not a whole lot we can do. >> if you detected even a small one like the one that detonated in russia, headed for new york city in three weeks. what would we do? >> the answer to you, if it's coming in three weeks, pray. >> experts warn the chances of a meteor catastrophe are slim. they say they are real. 10,000 small meteors within range capable of destroying heavily populated urban areas are out there. >>> now to a medical study that hits home for sleep deprived and stressed out right here at home. turns out they may make us at risk for obesity. colorado researchers discovered adults who got five hours of sleep a night gained weight almost immediately after cutting back on sleep. they ate 6% more food than adults who got nine hours of sleep at night. researchers discovered sleep deprived people crave fatty foods. wonder what the study is on people who get no sleep at night. >> should i let out my suit now because